Which of the following describes a restricted use pesticide?

A restricted use pesticide is defined specifically by regulations which indicate that such pesticides can only be used by certified applicators or under their direct supervision. This classification is necessary because restricted use pesticides may pose a higher risk to human health or the environment compared to general-use pesticides. Therefore, their use is limited to those who have demonstrated knowledge and training in handling them safely and effectively.

The reasons that the other choices do not accurately describe restricted use pesticides further contextualize this definition. For instance, indicating availability to the general public without certification contradicts the very essence of restricted use, which is designed to limit access to trained individuals only. The characterization of low toxicity and safety for general use is also not applicable, as restricted use pesticides are classified specifically because they can be more hazardous. Lastly, stating that they are designed for household use is misleading; while some restricted use pesticides may be utilized in residential settings, their classification arises from safety and regulatory considerations, rather than their intended application environment.